if (!myFile.canRead()) { final String message = "Unable to read from " + myFile + "."; throw new BuildException(message); } if (!myFile.canWrite()) { final String message = "Unable to write to " + myFile + "."; throw new BuildException(message); }
if (!file.exists()) { final String message = "File " + file + " does not exist"; throw new BuildException(message); } if (!file.isFile()) { final String message = "File " + file + " is not a file"; throw new BuildException(message); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/BuildNumber.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/JarLibResolveTask.java
Method name: void validate() Method name: void checkExtension(File)
Number of AST nodes: 6 Number of AST nodes: 6
1
if (!myFile.canRead()) {
1
if (!file.exists()) {
2
            final String message = "Unable to read from
2
            final String message =
3
 " + myFile + ".";
3
                "File " + file + " does not exist";
4
            throw new BuildException(message);
4
            throw new BuildException(message);
5
        }
5
        }
6
        if (!myFile.canWrite()) {
6
        if (!file.isFile()) {
7
            final String message = "Unable to write to
7
            final String message =
8
 " + myFile + ".";
8
                "File " + file + " is not a file";
9
            throw new BuildException(message);
9
            throw new BuildException(message);
10
        }
10
        }
Summary
Number of common nesting structure subtrees1
Number of refactorable cases1
Number of non-refactorable cases0
Time elapsed for finding largest common nesting structure subtrees (ms)0.4
Clones locationClones are in different classes having the same super class
Number of node comparisons28
  1. {Refactorable}
    Mapping Summary
    Number of mapped statements6
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)2.7
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    6
    if (!myFile.canRead())
    6
    if (!myFile.canRead())
    1
    if (!file.exists())
    Differences
    Expression1Expression2Difference
    canReadexistsMETHOD_INVOCATION_NAME_MISMATCH
    myFilefileVARIABLE_NAME_MISMATCH
    Preondition Violations
    Expression myFile.canRead() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression file.exists() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    1
    if (!file.exists())
    7
    final String message = "Unable to read from " + myFile + ".";
    7
    final String message = "Unable to read from " + myFile + ".";
    2
    final String message = "File " + file + " does not exist";
    Differences
    Expression1Expression2Difference
    "."" does not exist"LITERAL_VALUE_MISMATCH
    "Unable to read from ""File "LITERAL_VALUE_MISMATCH
    myFilefileVARIABLE_NAME_MISMATCH
    2
    final String message = "File " + file + " does not exist";
    8
    throw new BuildException(message);
    3
    throw new BuildException(message);
    9
    if (!myFile.canWrite())
    9
    if (!myFile.canWrite())
    4
    if (!file.isFile())
    Differences
    Expression1Expression2Difference
    canWriteisFileMETHOD_INVOCATION_NAME_MISMATCH
    myFilefileVARIABLE_NAME_MISMATCH
    Preondition Violations
    Expression myFile.canWrite() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression file.isFile() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4
    if (!file.isFile())
    10
    final String message = "Unable to write to " + myFile + ".";
    10
    final String message = "Unable to write to " + myFile + ".";
    5
    final String message = "File " + file + " is not a file";
    Differences
    Expression1Expression2Difference
    "."" is not a file"LITERAL_VALUE_MISMATCH
    "Unable to write to ""File "LITERAL_VALUE_MISMATCH
    myFilefileVARIABLE_NAME_MISMATCH
    5
    final String message = "File " + file + " is not a file";
    11
    throw new BuildException(message);
    6
    throw new BuildException(message);
    Precondition Violations (4)
    Row Violation
    1Expression myFile.canRead() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    2Expression file.exists() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Expression myFile.canWrite() cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression file.isFile() cannot be parameterized, because it has dependencies to/from statements that will be extracted